Multiple punching-press.



PATENTED Nov. 1o, 1903.

W. GROSSLEY. MULTIPLE PUNGHING PRESS.

APPLICATION FILED 0071.3, 1902.

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No. 743,620. PATENTED NOV. l0, 1903.

W. GROSSLEY.- v I MULTIPLE PUNCHING PRESS.

APPLIUATION FILED 00T, a. 1902. f

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WILLIAM CROSSLEY, OF WESTHAVEN, CONNECTICUT.

MULTIPLE PUNoHlNe-Passs.

SEEIFICATION forming part of Letters Patent No. 743,620, datedvNovember 10, 1903.

Application filed October 3,1902. Serial llo. 125,756. (No model.)

.To all whom it may concern:

Be it known that I, WILLIAM CaossLEY, a citizen of the United States, and a resident of Westhaven, in the countyof New Haven and State of Connecticut, have invented certain new anduseful Improvements in Multiple Punching-Presses, of which the following is a full, clear, and exact specification.

The object of my invention is to provide press mechanism adapted for multiple punching or shearing operations, such as simultaneously perforating, cutting, or' trimming both ends of a metal bar or analogous Work.

The invention consists in the novel construction,arrangement, and combination of the parts of the mechanism, as hereinafter more fully described and claimed.

In the accompanying drawings, forming a part of this specification, Figure l is a front elevation of my improved multiple punchingpress. Fig. 2 is a horizontal section on the lines a; and y of Fig. l. Fig. 3 is an end elevation. Fig. a is a vertical cross-section on the line z of Fig. l. Fig. 5 is an end View of the girder and punching-head as seen with the end part of the frame removed. Fig. 6 is a vertical lengthwise section through the punching-head and shaft on the line X X, Fig. 4.

Referring to the drawings, the frame of the machine is shown toconsist of deep heavy upper and lower horizontal girders A B, connected at the ends by the vertical tie-plates D, which are securely bolted to the girders, as shown, the whole being mounted upon a suitable foundation of I-beams or other required construction. Journaled in said end tie-plates is a horizontal shaft E iu the plane ofthe girdersand near the uppergirderA, the shaft being provided with a gear e and driven by any suitable motive mechanism.

On each vertical side of the upper girder A are two pairs of ways comprising the vertical pieces f, grooved on their inner edges and connected at each end by the cross-bars g, bolted thereto, the corresponding ways on each side of the girder being in the same crosspiane and ad justably secured by bolts h, pass-V ing through suitable slots in the girder. In the aforesaid ways are fitted the slides ic, comprising two vertical parts spanning the girder and joined below the same by the loosely upon the shaft and provided with a .Y

key n, which lits a spline n' in the shaft, whereby the eccentric may readily be moved along the shaft to any required position and always turn therewith.

To the lower end of the slides are attached the punches, shears, or other required cutting-tools, in the present instance consisting of a punch r on one of the slides and a similar punch and a shearing cutter r on the other. Suitable anvil-blocks T are supported on the lower girder, adj ustably held thereon by Straps t' and holding-bolts t2. Strippingplates 7f3 are attached to the anvil-blocks to prevent the lifting of the work by the withdrawal of thel punches, and a stop t4 is secured Vto one of the anvil-blocks, as shown, against which the work or bar of metal u. is abutted and its position under the punches located when fed beneath them through the aperture V in the end tieplate, as shown in Fig. l. Y

At each side of the eccentric m the half boxes or bearings fw are mounted, bearing between the shaft and the upper girder. By this construction the working thrust of the punches is transmitted directly to and received by the girder andthere is no tendency to spring the shaft. All the parts may be adjusted at any position on the girders, and to facilitate moving the punching-heads comprised by the slides and their ways horizontal yokes m' 'm2 are secured to the ways and provided with adjusting-screws m3, journaled in the end'iie-plates, as shown in Fig. 2. Plates e2 are secured to the y lower crossweb k on each side of the eccentrics to hold the eccentrics in place in the slides. Suitable meansgare also provided to retain the boxes 'w in position, straps e3 being secured to the slide for that purpose, as shown in Figa v5. Both boxes and eccentrics are thus compelled to move along with the punching-head asit is adjusted on the girder and shaft.

In operation both punches make their stroke in unison, cutting off the bar n to the desired length and punching a hole in each end of the detached piece. The straps thus formed are in use as an article of manufacture, being employed largely for braces for the cross-arms of telegraph-poles and analogous requirements.

I claim and desire to secure by Letters Patent- 1. A multiple punching-press comprising in combination a girder, a series of guides movably secured thereon, punch-carrying slides spanning the'girder and adapted to reciprocate in said guides, a shaft in the moving plane of the slides parallel with the girder, eccentrics mounted on the shaft and movable lengthwise thereto, boxes fitted on the eccentrics and adapted to transverse sliding movement in the slides, journal-bearings adjacent the eccentrics interposed between the shaft and girder to impose the thrust of the eccentrics upon the gil-der, an anvil-girder for receiving the impact of the punching mechanism, anvil-blocks adjust-ably secured thereou, and means for adjusting and securing the punching?,r mechanism in Various positions on the girders, substantially in the manner and for the purpose specified.

2. A multiple punching-press comprising in combination a supporting-glrder, a series of guidesfmovably fitted on the girder and secured by bolts passing through slots therein, the punch-carrying slides k tted in the guides and spanning the girder, the anvilgirder and the vertical. tie-plates connecting the girders, a shaft journaled in said tieplates between the girders, the eccentrics keyed to the shaft movable lengthwise there- 0n, the boxes Z Atting the eccentrics and adapted to transverse sliding movement in the slides, journal-bearings adjacent the eccentrics interposed between the shaftand girder to impose the thrust of the eccentrics upon the girders, means for confining the boxes and eccentrics in place in the slides, the anvil-blocks adjustably secured upon the anvil-girder, and means for adjusting the slides and their Ways upon the supportingguides, substantially as and for the purpose specied. l

Signed by me at Vesth-aven, Connecticut, this 24th day of September, 1902.

' WILLIAM CROSSLEY. Witnesses:

THoMAs C. BRETT, GEORGE L. BARNES. 

